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US2550111A
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Speed-limiting device for dynamoelectric machines
Assignee: Westinghouse Electric Corp
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Filing: 1949-11-04
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Granted: 1951-04-24
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Expires: 1969-11-04
Abstract
No abstract record available.
Inventors
- 👤 Harry D Else
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:29
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/102; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US962819A
Cited
US2196434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |